juncoidbs JUNCACE.E 681 



JUNCUS 



Var. congestum Sheldon I, c. Spikes several, sessile and closa, 

 forming a somewhat pyramidal head : bracts white and conspicuous : peri- 

 anth brown, \% lines long. Near the coast, Oregon to California. 



Var. macranthuui Parish. Perianth 2-3 lines long, much exceeding 

 the broad obtuse capsule : anthers equalling or twice longer than the fila- 

 ments : seeds longer, the appendage always short. Alaska to California. 



Var. subsessile Watson Bot. Cal. ii, 203, under Luzula. Spikes 

 solitary or few, nearly sessile, loose: perianth-segments lax and scarious. 

 Oregon to California. 



J, campestre Kuntze 1. c. 724. More or less villous with long white 

 hairs : stems densely tufted, erect, 4-10 inches high, 2-4-leaved : leaves 2-5 

 inches long, 1-4 lines wide, tapering at the apex to a blunt almost gland- 

 like point: branches of the panicle unequal, straight, each bearing an 

 oblong or short-cylindric dense spike : the lowest bract leaf-like, often 

 exceeding the panicle: floral bracts white, ovate, acuminate, about equal- 

 ling the flowers : segments of the perianth lanceolate-ovate, acuminate, 

 brown with white margins, 1-1>2 lines long : capsule obovoid ; seeds oblong, 

 with a thick white appendage at base. In the mountains, Alaska to 

 California and the Eastern States. 



J. divaricatum Coville 1. c. Stems 4-7 inches high : cyme broadly 

 diffuse, with divaricately spreading branches and pedicels : perianth tinged 

 with brown: seed light-colored, with a small appendage at base. In the 

 Cascade and Sierra Nevada Mountains,, southern Oregon to California. 



2 JUNCUS L. Sp. 325. 



Glabrous perennial or annual plants, growing in wet or moist 

 places, with simple terete leafy or leafless stems, terete channel- 

 led or flat, sometimes equitant, often knotted leaves and small 

 flowers in clusters, cymes, panicles or heads or solitary. Stamens 

 6, or sometimes 3 by supression of the inner ones. Capsule glo- 

 bose to pyramidal, many-seeded, 3-valved, 3-celled with central 

 placentae, or 1 -celled with parietal placentae. Seeds usually dis- 

 tinctly reticulated or ribbed, often tailed. 



* Stems leafless and scape-like, from matted rootstocks, sheathed 

 at base: the inner sheaths sometimes bearing terete leaves: flowers in 

 sessile apparently lateral panicles. 



+■ Scapes slender : sheaths mostly leafless : spathes usually very 

 much exceeding the panicle : stamens usually 6. 



-** Flowers in compound panicles, two lines long or more : capsule 

 oblong-ovate. 



J, Lescurii Bolander Proc. Calif. Acad, ii, 179?. Stems stout, 1-3 

 feet high, from a stout creeping rhizome: sheaths short, black, obtuse : 

 spathe 6-15 inches long very acutely pointed : flowers in a dense somewhat 

 secund many-flowered panicle : bracts ovate, acuminate: perianth-segments 

 23^-3 lines long, lanceolate, acuminate : greenish-white with intermarginal 

 brown stripes: anthers much longer than the filaments: capsule brown, 

 triquetrous, sharply angled, acute, shorter than the perianth : seeds ovate, 

 obtuse, scarcely apiculate. In shifting sands along the coast of Oregon : 

 perhaps distinct from J. Lescurii as that species is said to grow in "Salt- 

 marshes and saline localities". 



J. Balticus Willd. Berlin Mag. iii, 298. Stems erect, 8-36 inches 

 high, arising at intervals from stout creeping rootstocks : sheaths green or 

 tinged with dark brown : spathe slender, 4-6 inches long: panicle commonly 



